Figure 1: Lumens/ Watt of Typical Lights Sources Found on Farms

0 lumens/watt - T-8 Fluorescent
75 lumens/watt - High Intensity Discharge High Pressure Sodium
55 lumens/watt - High Intensity Discharge Metal Halide
50 lumens/watt - Compact fluorescent
15 lumens/watt - Incandescent Regular
10 lumens/watt - Incandescent Long life



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